Finding the Fourth Proportional to 611,747.80, 917,621.70 and 162,467.80
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Solution
The fourth proportional to 611,747.80, 917,621.70 and 162,467.80 is: 243,701.70
Step by Step Solution
- Step 1: Write the proportion equation
611,747.80 : 917,621.70 = 162,467.80 : x - Step 2: Convert to fraction form
611,747.80/917,621.70 = 162,467.80/x - Step 3: Cross multiply
611,747.80x = 917,621.70 × 162,467.80 - Step 4: Simplify right side
611,747.80x = 149,083,978,831.26 - Step 5: Solve for x
x = 149,083,978,831.26/611,747.80 - Step 6: Final answer
x = 243,701.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.